The temporal evolution of the energy flux across scales in homogeneous turbulence

Cardesa Dueñas, José Ignacio and Vela Martin, Alberto and Dong, Siwei and Jiménez Sendín, Javier (2015). The temporal evolution of the energy flux across scales in homogeneous turbulence. "Physics of Fluids", v. 27 ; p. 111702. ISSN 1070-6631. https://doi.org/10.1063/1.4935812.

Description

Title: The temporal evolution of the energy flux across scales in homogeneous turbulence
Author/s:
  • Cardesa Dueñas, José Ignacio
  • Vela Martin, Alberto
  • Dong, Siwei
  • Jiménez Sendín, Javier
Item Type: Article
Título de Revista/Publicación: Physics of Fluids
Date: 16 November 2015
ISSN: 1070-6631
Volume: 27
Subjects:
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Mecánica de Fluidos y Propulsión Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A temporal study of energy transfer across length scales is performed in 3D numerical simulations of homogeneous shear flow and isotropic turbulence. The average time taken by perturbations in the energy flux to travel between scales is measured and shown to be additive. Our data suggests that the propagation of disturbances in the energy flux is independent of the forcing and that it defines a ‘velocity’ that determines the energy flux itself. These results support that the cascade is, on average, a scale-local process where energy is continuously transmitted from one scale to the next in order of decreasing size.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7267626HECTORUnspecifiedMicrowave-assisted microreactors: development of a highly efficient gas phase contactor with direct catalyst heating

More information

Item ID: 40281
DC Identifier: http://oa.upm.es/40281/
OAI Identifier: oai:oa.upm.es:40281
DOI: 10.1063/1.4935812
Official URL: https://aip.scitation.org/doi/10.1063/1.4935812
Deposited by: Memoria Investigacion
Deposited on: 27 Sep 2016 11:52
Last Modified: 04 Jun 2019 16:14
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